k_CAD
- Biggest blockage is D1, but it supplies a smaller territory than the LAD artery, as Dr Leow explained
- 2nd biggest blockage is LAD, below 50%.
- The right side … around 10% blockage. The “below 50%” from CT is overestimate, according to Dr Leow.
Q: Is my D1 big enough for stenting when needed? Fortunately yes
Q: when the wire passed through the narrow sites, was it possibly rubbing off the plaque?
AA: Yes for some patients. In my case, the plaque is calcified (hardened), and protects the artery wall against wire robbing.
Overall, need to bring LDL under 80, with two new drugs to replace lipitor.
— CTCA (CT coronary angiogram) ^ invasive angiogram
https://modernheartandvascular.com/differences-between-cardiac-ct-scan-and-angiogram/
https://www.circlecvi.com/resources/cardiac-ct-scan-vs-angiogram-what-s-the-difference
For abnormal CT angiography findings, such as blockage or narrowing of one or more blood vessels, the patient may need a standard angiography as a follow-up. This is typical when doctors consider surgery to treat the narrowing or obstruction.
FFR is even more reliable. See https://www.uptodate.com/contents/clinical-use-of-coronary-artery-pressure-flow-measurements
CT has (better sensitivity, therefore good for rule-out) poorer specificity, therefore inferior for ruling in i.e. diagnosing a borderline case like me.
Low specificity means high probability of mis-fire (false positive). Such diagnostic tests need a follow-up (more identifying) test with better specificity. See my bpost on specificity^sensitivity